Sheet feeding and delivering device for automatically-operated type-writing machines.



L'. R. ROBERTS & 0. L. DAVIS. SHEET FEEDING AND DELIVERING DEVICE FORAUTOMATICALLY OPERATED TYPE WRITING MAOHINES.

APPLIOATION FILED SEPT. 22. 1908.

Patented Mar. 16, 1915.

s SHEETSSHEET '14 L. R. ROBERTS & 0. L. DAVIS. SHEET FEEDING ANDDELIVERING DEVICE FOR AUTOMATICALLY OPERATED TYPE WRITING MACHINES.

APPLICATION FILED SEPT. 22. 1908.

mszmma PatentedMar. 16, 1915.

6 SHEETS-SHEET 2.

L. R. ROBERTS & G. L. DAVIS. SHEET FEEDING AND DELIVERING DEVICE FORAUTOMATICALLY OPERATED TYPE WRITING MACHINES. APPLICATION FILED SEPT.22. 1908.

6 SHEETS-SHEET 3.

L. R. ROBERTS & G. L] DAVIS.

LIVERING DEV IGE FOR AUTOMATICALLY OPERATED TYPE WRITING MACHINES.

SHEET FEEDING AND DE APPLIGATION FILED SEPT. 22, 1908. 1 1 SQQMOPatented Mar.16,1915.

5 SHEETS-SHEET 4.

Whammy: g; WW

dv (aw L. R. ROBERTS & 0. L. DAVIS. ,SHEBT FEEDING AND DELIVERING DEVICEFOR AUTOMATICALLY OPERATED TYPE WRITING MACHINES. APPLICATION FILEDSEPT. 22. 1908.

1,1 82,034. Patented Mair. 1A, 1915.

6 SHEETS-SHEET 5.

sures PATENT ora ion.-

LYMAit 1a. Runners Am) cnnmlns DAVIS, or henom, MICHIGAN, nssrenons Tunnnawoon rmwm'rna comramr, or new NEW JERSEY.

YORK, 31'; 21, A CORPORATION OF mm mama mm tmwama niivi'cn' rot-it-Ammamemamam W1 1iwarrme nacnmns;

maaoae.

Specification of Letters Patent. pafimmf fl M i- 16; 1915 A lication nees' tmir 22, was. seal iii. 454,135;

To all whom it may concern:

Be it known that we, EYMAN R. ROBERTS and CHARLES L; Davis, bothcitizens'of the United States of America, and both residing in Detroit,in thecounty of Wayne and State of Michigan, have invented certain newand useful Improvements in Sheet Feeding and Delivering Devices forAutomatically-Operated Type-Writing Machines, &c., of which thefollowing is a specification. v

This invention relates principally to machines for operating typewritingmachines,

' such for instance as the kind set forth in our United Statesapplication No. 128,050, Patent 1,109,597, Sept. 1, 1914:, in which, bymeans of a perforated web of paper, certain pneumatic hammers are causedto operate the keys of the typewriter," and the sheet written on iscaused to advance for linespaeing and also to return to begin a new lineof writing. 7

One of the principal objects of the present invention is to avoid thenecessity for the attendant to insert a fresh sheet in the typewritingmachine after the writing of-each sheet is completed. To this end, thereis provided upon the typewriter carriage a sheet support or feed boardto receive a pile of sheets, and means are provided to operate atanother conclusion of the writing of each sheet to lift the sheet fromthe pile and introduce it between the rolls of the typewriting machine.As soon as each sheet is written, it is delivered and depositedautomatically upon its predecessors, forming a delivery pile. It is thusonly necessary for the operator to place a pile of sheets upon the feedboard, whereupon the machine will operate until the pile is exhausted,and deliver the Written sheets into a receptacle.

The operation of feeding a sheet from a pile of blank sheets into thetypewriting machine is controlled by means of a suitable perforationmade, at the proper point in the master sheet, whereby pneumatic devicesare called into operation to feed the sheet. These devices includesuction cups which drop upon the sheet, and are then exhausted and risewith the sheet from the pile. At the proper moment the vacuum in thecups is relieved, and the sheet drops into the bite of the usual platenand pressure rolls.

' facilitate separating the It is then fed around the late-n line byline as the Wr t ng proceeds; ts'leadin edge is guided '11 to a pair offeed rollsaiovethc platen. he's'e rolls are geared to the platen, andserve tocarry the sheet into a re'ce tacle provided on the delivery,side 'of t e platen; ine a'ns bein' provided to tease the bottom edge ofthe gheet to ride'over one of the rolls and drop into the receptacle.

The pile of blank sheets stands on edge at the rear of the platen,resting back upon a feed board, which is slightly tilted to the rear,and downupon a foot or stop. To U top sheet from an under sheet whichmay accidentally cling thereto, saidstop is set at an acute angle to thefeed board, and the suction cup is caused to move in a direction aboutparallel with the inclination of the stop. Moreover. the edge'sof thestop conver' e toward each other, to cause the b'ottom e ge of the sheetto scrape along said edges for a considerable port on of the width ofthe sheet, thereby tending to detach any under sheet; while at the frontof the stop are provided hooks or rlfiles, ust beneath or in registerwith the cups, which are effective in finally separatmg thetop sheetfrom any under sheet that may lift with it. The cups are mounted upon aframe which vibrates to lift and drop them, the vibration being effecteddurmg the return movements of the paper carrlage to begin a new line ofWriting. A cam isfixed upon the typewriting machine to engage a part ofsaid vibrating frame to cause the movements of the cups; the cam beingadjustable along the run of the carriage, to cause such movements totake place at any desired point.

This invention is shown applied to an Underwood typewriting machine, inwhich it is customary to use the line-space lever for the purpose ofreturning the carriage to begin a new line; said lever being operatedautomatically in the present instance in the manner illustrated in saidUnited States application No. 428,050 Patent No. 1,109,597, Sept. 1,1914 In order to prevent the cups from resting upon and retarding thesheet at the line-spacing operation, a second cam is provided upon themachine frame to engage the suction clip frame,

andlift the cups during the lineacing operation;. this second cam beingli ewise adjustable along the run of the carnage.

inafter appear.

In the accompanym drawings, Figure 1 is a perspective front e evation ofa carriage and connections of an Underwood typewriting machine connectedto a typewriter operator, such'as already referred to. Fig. -2 is asectional side elevation of .the same, showing the suction cups infulllines resting upon the pile of sheets and n dotted lines insheet-feeding position. Fig. 3 1s a detail of the sheet-feedingmechanism, showing a sheet lifted by the cups from the pile,

and an undersheetheld back by the hooks or riflles. Fig. 4 is aperspective front'view of the cams fixed upon the frame of thetypewriting machine for controlling the movements of the paper-feedingsuction cups.- Fig. 5 is a perspective view 'of the hollow frame or bailwhich carries the suction cups. Fig. 6 is a sectional plan of the lowerpart of the feed board and the foot or stop on which the sheets rest..Fig. 7 1s a sectional side elevation showing the manner of delivering asheet into the receptacle for the delivery sheets. Fig. 8 is a rear viewof said receptacle. Fig. 9 is a sectlonal elevation of the first andsecond primary pneumatics connected to the sheet-feeding mechanism, andcontrolled by the perforated master sheet. Fig. 10 is a diagrammatic Iperspective of the perforated master sheet and tracker board.

In using the apparatus set forth in sald application, types 1 are causedto strike against the front side of a cylindrical platen 2 by means ofpneumatic devices controlled by a perforated master sheet or loop 3, thelatter running over rolls 4, 5 and an intermediate tracker board 6. Asusual in the Underwood machine, the platen 2 is journaled by means of anaxle 7 in the ends 8 of a platen frame, which includes a paper shelf 9,which inclines downwardl beneath and curves forwardly up around t eplaten,

and coiiperates with pressure rolls 10, 11 to a carriage 14, which movesstep by step to the left for letter-feeding, and is returned to theright to begin each new line.

The sheets to be fed into the typewriter.

are arranged in a pile 15, which stands on edge over the platen frameand back of the platen, or in other words at the introductory side ofthe machine. The supporting means 7 for said pile comprises a backwardlytilted feed board 16, having at its bottom a foot rest or stop 17 Thesheets stand u on the latter, as shown, and rest against t e feed sidesof-the feed board 16. Other features and advantages will here-' thesheet. The cups, of which two are 16; The sides of the pile may beconfined bya pair of plates or ages'18'at the he receptacle is supported byone or more brackets 19 upont e .carriage 14.0fthe tvpewrit'ing machine,being secured by screws 20. -,1 a

The sheets are picked off the pile by means of suction cups 21, whichareformed of soft "rubber and have very thin and highly flexible lips orflangesto "restupon shown in the present instance, fit upon nip-' ples22 projecting rearwardly from a rod 23, which is bent ackwardly andupwardly A at its endsto form a pair vof arms 24, the

latter being bentinwardly at 25. parallel with the bar "23, and thewhole. forming a rectangular frame or bail; the portion 25 beingournaled in a pair of. ears 26 projecting rearwardly from the back ofthe feed table 16, so that the frame with the cups may swing, upwardlyand forwardly from the full line position to the dotted line position atFig. 2. Said suction cup frame is hollow, and the ends of the part 25are connected by a hollow coupling 27 the latter having a nipple 28 uponwhich is secured the end of a flexible rubber suction tube 29. The tubeis of such length as to permit it to travel freely with the papercarriage 14. It will be understood that when said'tube 29 is exhausted,air will also be drawn out from said hollow or tubular frame 23, 24, 25,and from the suction cups 21, to cause the latter to pick up the topsheet from the pile 15. The other end of the flexible suction tube 29 isfitted upon a nipple 30 extending from a second primary 31, the latterbeing connected by a tube 32 to a first primary 33, and this in turnbeing connected by a tube 34 to a nipple 35 having an opening 36 in saidtracker board 6.

Thus the pneumatic devices, including the tube 34, first primary 33,second primary 31, tube 29, frame 23, 24, 25, and cups 21, extend fromthe tracker board to the carriage and'communicate with the pile ofsheets 15, so that the feeding of the sheets may be controlled by themaster sheet runnm over the tracker board. Said opening 36 1s nor-'mally covered by the master sheet 3 during the operation of thetypewriting machine;

but when a perforation 37 in the traveling I sheet 3 registers with theopening 36 in the tracker board, air is admitted into the pneu-' maticdevices, and the suction cups caused to rip the top sheet of the pile15.

he pneumatic devices may be of any suitable'character; but for the sakeof illustration the drawingsshow the same pneumatic apparatus as isdisclosed in said application. Said rimaries 33 and 31 are secured uponan alr chamber 37, which is being constantl exhausted by any suitablemeans throng the pipe 38.. :When the per utmost foration 86 in thetracker board is opened by the sheet 3, air enters through'the tube 84into a bottom chamber- 39 of the primary 33, and lifts a flexiblediaphragm 40. Upon the latter rests a stem t1, which lifts a valve 42against a seat 43 in the primary case 38, and also lifts an outsidevalve 44 from the top of the casing 33, andadmits air from theatmosphere through an opening 45 in said top. Such atmospheric air amfrom the first primary through tube-32 to the entrance chamber 46 of'the mondiprirnary a1, and lifts a diaphragm 4 6, upon which rests avalve stem 48. This stem lifts a valve 49 from an opening 50 in ahorieontal partition 51 formed in theseeond primary '81; and at the sametime a valve 52 onthe stem 48 closes a normallyopen aperture fih inthetop of the casing 31. Thus the exhaust chamber-37 is put intocommunication with the main chamber of the second primary 31, and air isexhausted through the nipple 30 from the flenible carriage tube 29, andthe cups are caused togrip the top sheet on the pile l5. lit will beseen that the exhaust chamber 37 in the pneumatic device may communicatewith the main chambers of the first and second primaries by the meansdescribed.

When the perforation 87 in the master sheet passes by the hole 36 in thetracker board, and said hole is consequently closed by the body of thesheet, air is exhausted from/the tube 34 and the entrance chamber 39through a small'hole fi l'usually provided, in pneumatic devices of thischaracter, in the middle of the diaphragm 40, so that the diaphragm andthe valve stem 41 may drop in the usual manner, thus causing the partsin the second primary 81 to resume normal positions, and relievln thevacuum from the suction cups, the am entering from the diaphragm throughthe opening 58 into the second primary 3]. and passing into the suctiontube 29. This admission of air to the tube 29 does not need to occurduring the return stroke of the carriage, but may occur during thewriting of the succeeding line on the prior sheet. The perforation 37*may be in the same line on the master sheet with the perforation whichcauses the carriagc to return to begin a new line, so that air remainsexhausted from the cups 21 during this entire return movement of thecarriage, While the master sheet remains stationary. At the completionof said return of the carriage, the master sheet is again started inoperation, as set forth in said application; and the perforation 37 inthe master sheet passes beyond the perforation 36 in the trackerboard,and air is hence admitted into the tube 29 and into the suction cups 21,so that the work-sheet is dropped into the bite of .'the platen androlls. In-

order to accomplish this result, it is only necessary to have theperforations on the master sheet in the proper relation to one another,as will be understood by thos'awho producesuch sheets. The sheet seen atFig. 10 may be regarded as merely a diagram, for the purpose of showingthat suction may be caused in the cups 21 by the passage of a mastersheetover-a tracker hoard.

While the suction cups are exhausted, the suotionnup frame swings fromthe full line position at Fig. 2 to the position at Fig. 3, therebylifting a sheet 55 from the top of the pile. This movement is producedby the paper carriage 14, and occurs during the last portion of thereturn movement of said carriage to begin a new line. For this purpose,an arm or crank 56 is secured upon the ournaled portion 25 of thesuction cup frame-and carries at its lower end an anti friction roll 57to engage a fixed cam or beveled plate 58. The latter it will be seen isin the path of said roll, so that the latter is swung from the full lineto the dotted line position at Fig. 2, during the movement of thecarriage to the right. While the rocking frame is in the Fig. 3position, the air is admitted to the tube 29 through the pneumaticdevices just described, and the sheet 55 is then dropped into the biteof the rolls of the typewriting machine, as at 59. Preferably thisoccurs at such a point as to permit the sheet 55 to be overlapped by thebottom of the preceding sheet 60, so that the latter, as it is fedaround by the platen and the rolls 10, 11, helps to draw the sheet 55into the typewriting machine.

In order to facilitate separation of the sheets one from another,several expedients are adopted. One of these consists in disposing thefoot or stop 17 at an acute angle with the feed board 16, as shown inFig. 2, so that the sheets are slightly fanned out, the plane of thelower edge of the pile being at an acute angle to the plane of the feedboard.

The suction cup frame is hinged in rear of the feed board, the latterbeing embraced by the arms 24, and the direction taken by the suctioncups is upwardly and forwardly,

about in the same direction as that taken by the angular stop 17. Themovement of the cup in this direction is of assistance in separating thetop sheet from the one under it. Again, the opposite sides of the stop17 converge toward each other, as seen at 61, Fig. 6, so that the bottomedges of the sheets tend to scrape along these converging edges for aconsiderable portion of the Width of the sheet, whereby the movement ofthe under sheet or sheets is retarded at the side edges thereof. At theterminations of said converging sides 61 are formed hooks or riffies 62,turned up from the stop 17 just beneath or in register with the twosuction cups 21. The suction of the cups is strong to cat'ch and holdback any under sheetwhich may have clung to thetop sheet up to; thispoint, as seen at 63, Fig. The cups may beof sufficient diameter, andthe suc tion of sufficient force, to cause the sheet to buckle a littleinto the cups, thus aiding. to disengage it from the under sheet, ifany.

' It will also be understood that the'constant' =platen, so that therolls 83, 84, which run vibration of the pile of sheets, due to therepeated starting and stopplng of the paper carriage, tends to separateall the sheets one from another.

I the paper is effected by a handle or lever 64,

mounted upon the platen frame and havingan arm'65 to drive a slide 66,which carries a pawl 67 in engagement with a ratchet wheel 68, which isfixed to the platen. The handle 64 also serves to return the carriage tobegln a new line; pressure of the handle to the right at Fig. 1 causingit to perform this double function. In said applicationa part 2569,controlled by the pneumatic devices of the typewriter. operator, iscaused automatically to effect the line-spacing and carriage returnmovements of the lever 64.

In order to prevent the suction cups 21 from resting on the sheet 55during the linespacing movement effected by sa d lever 64, there isprovided a fixed cam 70 m the path of the arm 56, to be engaged therebywhen the carriage is at or near the completion of the line of writing,to lift the cups 21 oif from the sheet 55, and hold them off while theline-spacing lever 64 turns upon its pivot to rotate the platen. Saidcam 70 and the cam 58 are adjustably held by screws and washers 71 upona horizontal bar 72, which is supported by legs 7 3 upon the machineframe, being secured by screws 74. The

screws 71 pass through a long slot 75, and.

are tapped into the cam plates 58 and 70 46 respectively.

around the front side of the platen in the usual manner by the curvedguide 76, which forms a continuation of the paper shelf 9; and above theprinting point, it passes under a pair of feed rolls 7 7 which run uponthe platen. If desired, a guideroll 7 8, usually provided upon a springarm 79 upon the Underwood machine, Fig. 1, may be emvloyed to direct thesheet under the rolls 77. he rolls 77 project inwardly from a pair ofarms 80, which extend forwardly from a rod 81 usually provided in theUnderwood .machine, and extending from one end of the platenframe to theother.-

Directly back of the rolls 77 1s'a deflector plate 82, erected on edgeover the platen and preferabl concaved to direct the leading edge of t esheet up between a pair of feed rolls 83,84. The deflector plate 82 maybe The rotation of the platen 2 .to line feed The. advancmg sheet 60 isguided up swiveled by means of ears as upon-the 'a'rward ends'of-arms 86projecting forwardly from the rod 81*- the swiveling enabling the plate82 tobemdjustedto the right angle to "direct the:'-sh( ,ets between therolls 83, 84. Said rolls 83, 84 are mounted by means of axles 87, 88 inbrackets 89, 90 erected upon the: ends of the platen frame. The shaft 87carries a pinion 91,wh.ich' isconnected by a gear 92 to a gear 93'fixedto'one end of the in contact,.are positively driven with the platen. Thesheet 60, upon emerging fromthe rolls 83, 84, passes upwardly andforwardly into a box-like 'receptacle 94, arranged on edge above thefront of the platen and supportedlupon the typewriter carriage I 14by-means of a bracket 9'5, the latter se- 'cured by means of a screw'96and clamp 97'- upon the front bar of the carriage. A cover 98, provided'upon' the receptacle 94, is curved rearwardly at99 to form'a' deflector'for guiding the. leading edge of the-sheet 60 up into the box. 'U npassu throu h the bite of the rolls 8 3, 84, tliii bo trtom ed ge of thesheet is caught b a pair of toothed wheels lQO fixed upon'the ends ofthe for ward roll axle 88, and carried bodily forwardly over the roll 84and dropped into the receptacle 94, as seen at 101, Fig. 7; the bottom102 of the latter inclining downwardly and forwardly sufl'iciently tocause the sheets to settle and pack against the base of the box 94. Theteeth of the wheels are preferably of ratchet form, pointed in adirection to catch under and lift the bottom edges of the sheets; andthe diameter of each wheel is preferably greater than the diameter ofthe roll 84. The teethpress back the side edges of the sheet to anunobjectionableextent, although they roject sufficiently beyond theperiphery'of t e roll to insure catching under the bottom andcarryingthe sheet over the top of the roll.

Variations may be resorted to within the scope of the invention, andportions of the improvements may be used without others.

Having thus described our invention, we claim: 1 O

1. In a machine of the character described, a sheet-feeding apparatuscomprising means for supporting a pile of sheets on edge above theintroductory side of the machine to which the sheetsare to be fed, saidsupporting means comprising aback rest and a foot rest which isinclinedlupwardl 1 and forwardly at an acute angle to the bac rest toform a retarding surface acting against the removal of the sheets, and asuc-- tion cup mechanism to ick the sheets 05125 from the'pile and dropt em into said machine; the suction cup being mounted to" move upwardlyand forwardly in a direction at an acute angle to said back rest.-

2. In a machine of the character de '0 edge above the introductory sideof the machine to which the sheets are to be fed, and

a suction cup mechanism to pick the sheets off from the pile and dropthem into said machine, said supporting means comprising a rearwardlytilted back rest and a foot rest inclined upwardly and forwardly at anacute angle to the back rest acting to hold the sheets in the supportingmeans against accidental removal, said foot rest provided with anupwardly projecting hook or riflle to catch and hold back any undersheet which may adhere to the sheet being picked off by the cupmechanism; said suction-cup mechanism constructed to drag the bottomedge of the sheet upon-said hook or rifile. V

3. In a machine of the character described, a sheet-feeding apparatuscomprising means for supporting a pile of sheets on edge above theintroductory side of the machine to which the sheets are to be fed, anda hinged bail provided with vibrating means, said bail hinged in rear ofsaid supporting means and embracing the same and inclined downwardlyand-forwardly from its hinge and carrying suction cups to lift thesheets from the supporting means and drop them into said machine.

4. The combination with a letter-spacing platen carriage of atypewriting machine, of means for supporting upon-said carriage a pileof sheets on edge. above the platen, a suction cup to rest upon thepile, and means dependent upon the movement of the carriage to lift saidsuction cup from the pile.

5. The combination with a letter-spacing platen carriage of atypewriting machine, of means for supporting upon said carriage a pileof sheets on edge above the platen, a suction cup to rest upon the pile,means dependent upon the movement of the carriage to lift said suctioncup from the'pile, and means to exhaust the suction cup at suchmovement, and then to admit air into the cup to cause it to drop thesheet to the platen.

6. The combination with a platen and a letter spacing carriage, of meansfor supporting upon said carriage a ile of sheets on edge above theplaten, a ame hinged upon said carriage and carrying a suction cupdevice to rest upon the pile, and a cam mounted upon the framework ofthe machine to engage a part of said frame to swing said suction cupaway from the pile.

i". The combination with a platen and a letter spacing carriage, ofmeans for supporting upon said carriage a ile of sheets on edge abovethe platen, a l rame'hinged upon said carriage and carrying a suctioncup device to rest upon the pile, and a cam mounted upon the frameworkof the machine to engage a part of said frame to swing said suction cup.away from the pile;

said cam being adjustable in the direction of letter-spacing movement ofthe carriage.

8. The combination with a rotatable platen and a letter spacingcarriage, of means for supporting upon said carriage a pile of sheets onedge above the platen, a frame hinged upon said carriage ,and carrying asuction cup device to rest upon the pile, a cam mounted upon theframework of the machineto engage apart of-said hinged frametoswingsa'i'd suction cup away from the pile, and means independent ofthe rotation of the platen for exhausting air from andadmitting'air tosaid cup.

9. The combination with a platen, carriage of a typewriting machine, ofmeans for supporting uponsaid carriage a pile of sheets upon edge abovethe platen, a bail hinged upon said carriage in rear of said supportingmeans and carrying a suction cup torest upon said pile, an operatin armupon said bail, and a camupon the ame- .-work of the machine to beengaged by said arm to swing the bail away from the pile of sheets.

10. The combination with a platen carriage .of a typewriting machine, ofmeans for supporting upon said carriage a pile of sheets upon edge abovethe platen, a bail hinged upon said carriage in rear of said supportingmeans and carrying a suction cup to rest upon said .pile, upon saidbail, and a cam upon the framework of the machine to be engaged by saidarm to-swin the bail away from the ile of sheets; said bail of tubularconstruction, and a flexible conduit-connected to said bail to traveltherewith and leading to means to control the exhaust and admission ofair to the cup.

11. The combination with a platen carriage of a typewriting machine, ofmeans for supporting upon said carriage a pileof sheets upon edge abovethe platen, a bail hinged upon said carriage in rear of said anoperating arm supporting means and carrying a suction.

cup to rest upon said pile, an operating'arm upon said bail, and a camupon the framework of the machine to be engaged by said arm to swing thebail away from the pile of sheets; said bail of tubular construction,and a flexible conduit connected to to travel therewith and leading tomeans to control the exhaust and admission of air to the cup; saidcontrolling means including a tracker board and a perforated sheetmoving thereover.

12. In a typewriting machine, the combination with a revoluble platen,of a sheetdelivering apparatus comprising a pair of feed rolls above theplaten, one of said rolls connected by gearing to the platen, anupstanding paper receptacle ad'acent to said feed rolls, a pair oftoothe wheels consaid bail I nected to the ends of one of said rolls toengage the bottom edge of the risin sheet to carry said edge over saidroll an drop the sheet into said receptacle.

I 13. In a typewritmg machine, the combi-' nation with a revolubleplaten, of a sheet delivering apparatus comprising a air of feed rollsabove the platen, one of sald rolls connected by gearing to the platen,an up- U guidingl-sthe sheets up from the platen to" said ro t 14. In atypewriting machine, the combination with a revolub e platen, of asheetdelivering apparatus comprising a pair of feed rolls above theplaten, one of said rolls connected by gearing tothe platen, anupstandin paper receptaclead'acentito said feedro s, a pair of toothewheels connected to the ends ofone of said rolls to engage the bottomedge of the risin sheet guiding the sheets u tocarry said edge over saidroll an 'drop the sheet into said receptacle, and means for from theplaten to said rolls; said gui' 'ng means including "rolls to run on theupper front side of theplaten, and a deflector leading from the top of,the platen up to the bite of said firstmentioned rolls.

15. In a typewriting machine, the combination with a revoluble platen,of a sheetdelivering apparatus comprising a-'-pair of feed rolls abovetheplaten, one of saldrolls I connected by gearing to the platen, anupstanding paper receptacle ad acent to said feed rolls, a pair oftoothed wheels connectedto the ends of, one of said rolls to engage thebottom edge of the rising sheet to carry said edge over said roll anddro the sheet into said receptacle, and a de ector {leading from saidrolls upwardly over said paper receptacle to guide the leading edges ofthe sheets thereinto.

' v 16. A sheet-feeding apparatus comprising a back rest or table or theile of sheets, a foot rest or stop for the lea ing edge of the pile, anda suction-cup mechanism to pick the sheets upfrom the pile; the sideedges of the stop convergin toward each other,

1 whereby when the lea ing. edge of a sheet .scrapes along saidconverging edges of the stop as the sheets are lifted from the pile,said converging edges tend to retard any under sheet which may adhere.to the sheet ,beingpicked ofl".

r 17. A sheet-feeding apparatus comprising a back rest or-table or thepile of sheets, a foot rest or stop for the leading edge of the pile,and a suction-cup mechanism to.

.pick thesheetsup from the pile;- the side edges of the stop convergintoward each other, whereby when the lea ing edge of a sheet scrapesalong said converging edges of the stop as the sheets are lifted fromthe pile, said converging edges tend to retard any under sheet which mayadhere to the sheet being picked OE, and hooks or rifiles projectingupwardly from the front or top of said stop between'said convergingedges. 18. A sheet-feedin apparatus comprising a back rest or table orthe pile of sheets, a foot rest or stop for the leading edge of the'pile, and asuction-cup mechanism to pick the sheets up from the pile;the side edges of the stop converging toward each other, whereby whenthe leading edge of a sheet scrapes along said converging edges of thestop as the-sheets are lifted from the pile,

said converging edges tend to retard any under sheetswhich may adhere tothe sheet being picked oil, and hooks or riflles projecting upwardlyfrom the front or top of said step between said converging edges; said'stop being inclined upwardly at an acute angle to said back rest.

19. A sheet-feeding apparatus, comprising a back rest or table for thepile of sheets, a foot rest or stop for the leading edgeof the pile, anda suction-cup mechanism to pick the sheets up from the pile; the sideedges of the stop convergingtoward eachother, wherebywhenthe leadingedge of a sheet scrapes-.along said converging edges of the stop as thesheetsare lifted 'froxnlthe pile, said convergin edges tend to retardany under sheet which may adhere to the sheet being picked ofi,-andhooks or rifiies profoot rest or stop for the leading edge of the pile,and a suction-cup mechanism to pick the sheets up from-the pile; theside edges of the stop converging toward each other,

and said st'op beinf inclined upwardly at an 'acute angle to ,sai backrest.

21. A shbet-feeding apparatus comprising a back rest or table for thepileof sheets, a foot rest,- or stop for the leading edge of thepile,'and a suction-cup mechanism to pick ,the sheets up from the pile;-the side edges .of the stop. converging toward each other, and saidstop being inclined upwardly at an acute angle to said back rest, andthe suction cup being mounted to move in a direction approximatelyparallel to the direction in which said step projects.

22. The combination ,with a rotatable platen ,and' a letter spacingcarriage, of

pile, a handle whereby said carriage is re- I turned to begin anew'line, said handle hav ing means to rotate the platen for line-spachold said suction cup device away from-the pile during the operation ofthe line-spacing devices. 23. The combination with a rotatable platenanda letter spacing carriage, of means for supporting upon said carriagea pile of sheets on edge above the platen, a frame hinged upon saidcarriage and carrying a suction cup device to rest upon the pile, a cammounted upon the framework oi the machine to engage a part of saidframe'to 7 swing said suction cup away fromthe pile,

a handle whereby said carriage is returned to begin a new line, saidhandle having means to rotate the platen for line-spacing, and a secondcamor guard to swing or hold said suction cup device away from the pileduring the operation of the line-spacing devices; said cam or guardbeing adjustable in the direction of letter-spacing movement of thecarriage.

24. In a typewritin machine, the combination with a revolulile platenand a carriage therefor, of asheet-delivering apparatus comprising 'anupstanding paper receptacle arranged on the carriage over the platen,and means to'carry the sheets up from the platen and deposit them insaid receptacle; said carrying and depositing means including a wheel tocatch the bottom edge of the sheet and carry said edge over the top ofthe wheel and drop the sheet into the receptacle.

25. In a typewriting machine, the combination with a revoluble platenand a carriage therefor, of a sheet-delivering apparatus comprising anupstanding paper receptacle arranged on the carriage over the platen,and means to carry the sheets up from the platen and deposit them insaid receptacle; said carrying and depositing means including a wheel tocatch the bottom edge of the sheet and carry said edge over the top ofthe wheel and drop the sheet into the receptacle; sheet-feeding rollsbeing mounted in proximity to said carrying wheel, and the latterconstructed to normally bend the paper slightly out of line with saidrolls to insure the bottom edge of the sheet being caught upon saidwheel.

26. In a typewriting machine, the combination with aplaten, of asheet-delivering apparatus comprising a pair of feed rolls, anupstandingpaper receptacle adjacent to to earry' said edge.

said feed rolls, and apair of toothed wheels adjacent to the ends of oneof said rolls to engagethe bottom edge of the rising sheet to carry saidedge over the top of said whiaels and dr p the sheet into saidreceptace.

I 27. "In a typewriting machine, the combination with a platen, of asheet-delivering apparatus comprising a pair of feed rolls,

an upstanding paper receptacle adjacent to ing, and a second cam orguard to swing or said feed rolls, and a pairof toothed wheels adjacentto the ends of. ori'e'of said rolls to engage the bottom edge'of therising sheet over the top of said wheels and drop the sheet into saidreceptacle, the teeth of said wheels projecting beyond the line ofcontact of said rolls to insure the bottom edge of the sheet beingcaught by said teeth.

28. In a typewriting machine, the combination with a revoluble platen,of a sheetdelivering; apparatus comprising a pair of feed rolls abovethe platen, one of said rolls connected by gearing to the platen, anupstanding paper receptacle adjacent to said feed rolls, and a toothedwheel connected to one of said rolls to engage the bottom edge of therising sheet to carry said edge over said roll and drop the sheet intosaid receptacle.

29. In a ty-p iting machine, the combination with a revoluble platen, ofa sheetdelivering apparatus comprising a pair of feed rolls above theplaten, one of said rolls connected by gearing to the platen, anupstanding paper receptacle adjacent to said feed rolls, a toothed wheelconnected to one of said rolls to engage the bottom edge of the risingsheet to carry said edge over said roll and dro thesheet into saidreceptacle, and means or guiding the sheets up from the platen to saidrolls; said guiding means including a deflector leading from the top ofthe; platenup to the bite of said rolls; said deflector mounted foradjustment forwardly and backwardly to direct the leading edge of thesheet properly between the rolls.

30. The combination with a typewriting machine having sheetguiding andlinespacing devices, of means for supporting a pile of sheets; and anoperator for feeding the sheets, said operator having a trackerboardEJ-for a master sheet, and also having pneumatic devices controlledby a master sheet through said tracker board and communicating with thepile of sheets to feed them to said sheet-guiding and line-spacingdevices.

31.. The combination with a typewriting machine having sheet-guiding andlinespacmatic devices controlled by a sheet through said tracker-boardandcommumcatin with the 'pile of sheets to feed them to saidsheet-guiding and hne-spacingdevices, said pneumatic devices includingan exhaust chamber communicating with said trackerboard,-' a suction cupin-commumcation with said exhaust chamber, and means to enable amastersheet running over the tracker-board to control the action of saidsuction: cup. 7 v a 32. The-combination with a typewritmg machine havingsheet-guiding and linespacing devices, of means for sup ort ng a pile ofsheets, and an operator for eedmg the sheets, said operator having atrackerboard fora master sheet, and also having pneumatic devicescontrolled by a master sheet through said tracker-board andcommunicating'with the pile of sheets to feed them to said sheet-guidingand line-s acmg devices, said pneumatic devices inclu ing an.

exhaust chamber communicating with said tracker-board, a suction cup incommunication with said exhaust chamber, means to enable a master sheetrunnin over the tracker-board to control the action of said suction cup,and means to effect bodily movements of the suction cup to and from thepile of sheets.

33. The combination with a typewriting machine having a carriageprovided with sheet-guiding and line-spacing devices, of means upon saidcarriage for supporting a pile of sheets, and an operator for feedingthe sheets, said operator having 1' trackerboard for a master sheet, andalso having pneumatic devices controlled b a master sheet on saidtracker-board an extendin to said carriage to feed the sheets to saisheet-guiding and linespacing. devices; said pneumatic devices includingan exhaust chamber communicating with said trackerboard, a suction cupin communication with said exhaust chamber, means to enable a mastersheet running over the tracker-board ,to control the action of saidsuction cup,

and means dependent upon the movement of the carriage, to effect bodilymovements of the suction cup to and from the pile of sheets.

. 34. The combination with a letter-spacing platen-carriage of atypewriting machine, of means for supporting upon said carriage a pileof sheets, a suction cup to rest upon the pile, means dependentupon themovement of the carriage to lift said suction cup from the pile and lifta sheet, an exhaust chamber, a tracker-board in communication with saidexhaust-chamber, and means controlled by 'a master sheet running overthetracker-board to putsaid suction cupinto communication with; saidexhaust chamber before the suction cup is lifted from the pile, and whenthe cup is lifted to cause to be admitted into the cup to cause it tocontrolled by a master sheet through said tracker-board to put saidsuction cup into open communication with said exhaust chamber andthereby enable the said cup to engage and lift off and away the topsheet of the pile, and means to permit admission of air to the cup afterthe latter has reached drops from the cup where the latter is in itsofi-and-away position.

36. The combination with a typewriting machine having a carriageprovided with sheet-guiding and line-spacing devices, of means upon saidcarriage for supporting a pile of sheets, and an operatorfor saidtypewriting machine, said operator having a tracker-board for a mastersheet, and also having pneumatic devices controlled by a master sheetthrough said tracker-board and extending to said carriage to feed thesheets to said sheet-guiding and line-spacing devices, said pnenmaticdevices including a suction cup to lift the top sheet from the-- pile,and connections between said suction cup and said tracker board, certainof said connections bein flexible to accommodate the movements 0 thecarriage. v

37. The combination with a typewriting .itszoif-and-away position,whereby the sheet I machine having sheet-guiding anddinespacin devices,of means for sufportmg 'a pile 0 sheets, and an operator or feeding thesheets, said operator having a trackerboard for a master sheet, and alsohaving pneumatic devices controlled by a master sheet through saidtracker-board andiextending to the pile of sheets to feed them to saidsheet-guidingand line-s acing devices, said pneumatic devices'incliiding an exhaust chamber communicating with said tracker-board anda suction cup in commu nication with said exhaust chamber, means to movesaid cup to and from the pile, and means controlled by a master sheetrunning over the'tracker-board to exhaust said on and cause the topsheet to rise from the p' e together with the cup, and then to admit airto. said cup and release the lifted sheet before'the cup is returned tothe pile.

38. The combination with a t peatedly feed sheets from a pile into thewriting machine, of a pneumatic sheetceding de-' machine atpredetermined eriods inthe 01peration of the machine as etermined by -te perforations in the master sheet, and means to deliver said sheetsand-automatically deposit-them one upon another.

'89. A sheet-feeding apparatus comprising means for supporting a pile ofsheets on edge above theintroduotory side'of the machinetOWhiGhtll'GSliQBtS are to be fed, said supporting means comprising aback rest and a foot rest which is inclined upwardly and forwardly at anacute angle to the back rest so as to form -a retarding surface gentlyopposing the removal of sheets therefrom, a suction device, and meansfor causing sa1d suction device to move to the pile and to clear the topsheet from the pile and to carry the sheet; to-such a position that whenit is released from said suction device it Will drop edgewise, bottomforemost, into said machine, and for causing said-suction device torelease'the sheet when in said position.

40. In a"'typewriting machine, the combination with a iletter-feedingcarriage and paper-feeding devices thereon, of means on said carriagefor supporting a pile of-sheets on edge above said paper-feedingdevices, said supporting means comprising a back rest inclined 'upwardlyand rearwardly and a foot-rest inclined upwardly and forwardly at-anacute angle to-said back rest, so that the sheets may gravitate againstboth rests, andso =that -=the intermittent feeding movements-of thecarriage may tend to jar the sheets apart and cause their bottom-edgesto lie in slightly overlapping relation on said foot rest, andapneumatic device for lifting the top sheet from the pile and dropping itinto the control of said paper-feeding devices.

41. The combination with a typewriting machine having paper-controllingdevices, of means for supporting a pile of sheets, a sheet'feeder, atracker-board, and a master sheet adaptedto control the operation of thesheet feeder.

4-2. The combination with a typewriting machine, a carriagethereon-having papercontrolling devices thereon, means on said carriagefor supporting a pile of sheets, a feeder for feeding said sheets tosaid paper controlling devices, a tracker board, and a master sheetadapted to control the operation of said feeder.

43. A sheet feeding apparatus comprising supporting means for holding apile of sheets adjacent to a machine to which said sheets are to be fed,a tracker board, a master sheet and a suction cup sheet liftingmechanism, the operation of which is controlled by said master sheet.

44. A sheet feeding apparatus comprising supporting means for supportinga pile of sheets, a tracker board, a master sheet and pneumaticmechanism adapted to pick sheets olfla pile and feed them-to a machine,the -operation of said pneumatic ,mechanism being controlled by saidmaster sheet.

45. A sheet ct'eeding ,apparatus comprisingmeans forsupporting a pile ofsheets on edge, an obstruction on said supporting means arranged infront of said sheets, a

tracker board, .a master sheet and a lifter adaptedto :lift said sheetsand scrape them past said obstruction, for feeding the operation, saidlifter :being controlled :by =said master .sheet.

46. A. sheet feeding apparatus comprising-supporting means for holding apile of sheets continually adjacent to the part of the machine to whichthe sheets are to be fed, a tracker-boardand a master sheet and a mastersheet controlled pneumatic mechanism operating to suck a-sheet and movetit off said pile.

47. A sheet feeding apparatus comprising means for supporting a pile-ofsheets=on edge above the introductoryside of the -machine to whichthesheets are to be fed, said supporting means comprising a rearwardlytilted back-rest and-a 'foot rest inclined upwardly and forwardly at anacute angle-to the back rest so as :to form an obstructing surfacetending-to retard'the withdrawal of a sheet, a tracker board, a -mastersheet and a master sheet controlled suction cup mechanismto-pick upthe-top sheet-off from the pile and drop it in said -machine,-saidsuction cup mechanism being mounted to move upwardlyand forwardly, so asto lift the sheets clear of the front edge-of said inclined foot rest.

48. The combination .with aplaten, of a sheet delivering apparatus forremovin a sheet from said platen including aplurafity of rolls, andtoothed wheels for engaging the sheets fed by said rolls to give them afurther-movement on leaving said rolls.

49. The combination with typewriting mechanism including a platen, of apair of rollsfor feeding the-sheets from said platen, toothed.wheelsconnected to one of said rolls and provided with means to give afurther movement to the sheet fed from said platen so-that it willclearthe rolls, and means for drivin said rolls.

50. The combination with a typewriting machine, of a sheet holder, apneumatic feeding means for feeding sheets from said holder to saidmachine, a tracker-board, a master-sheet and master-sheet controlledmeans connected with the tracker-board for controlling the pneumaticpressure in said feeder.

51. The combination with a carriage, of a sheet feeder for deliveringsheets to a certain position on said carriage, and means for controllingthe action of said sheet feeder at a predetermined point inthe' travelof said carriage, said means being ad ustable to vary the position ofsaid predetermmed point.

52. A sheet-feeding apparatus comprising a back rest for the pile ofsheets, a foot rest or stop for the leading edge of the pile, a suctioncup mechanism for lifting the sheets singly from the pile, the sideedges of the stop converging toward each other, whereby when the leadingedge of asheet scrapes along said converging edges of the stop as thesheets are lifted from the pile, said converging edges tend to retardany under sheet which may adhere to the sheet being picked off, andhooks or rifiles projecting upwardly from the front of said stop betweensaid converging edges, said hooks or riflles being substantially inregister with the suction cups, one upon each end of the stop, saidsuction cup mechanism having a cup sym metrically located with respectto the face of the pile of sheets to draw the sheets off evenly in avertical position.

53. The combination with a platen, of a sheet-delivering apparatus forremoving a sheet from said platen including a plurality of rolls, andmeans for giving a final movement to the sheet as it leaves the rollsand thereby cause it to clear the rolls. 54. In a typewriting machine,in combination, a carriage, a cam on said carriage, a sheet-feeder forfeeding sheets to said carriage, a pneumatic device for operating saidsheet feeder, and means controlled by said cam for determining thefeeding position of the sheet feeder.

55. The combination with a typewriting mechanism including a platen, ofa pair of rolls for feeding a work member from said platen after it hasbeen typewritten upon, toothed wheels coiiperating with one of saidrolls and arranged to give a further movement to the work member fedfrom said platen, and means for driving said rolls and said wheels.

56. The combination with a typewriting mechanism including a platen, ofa pair of rolls for feeding a work piece from said platen after it hasbeen typewritten upon, toothed wheels coiiperating with said rolls togive a further movement to the work piece fed from the platen, so as toprevent the work piece falling back between said rolls, means fordriving said rolls and said wheels,

and a receptacle for receiving the work piece from said rolls.

57. In a typewriting machine having a carriage, the combination with asheetfeeder, of a tracker-board, a master sheet,

means on the carriage controlling the efi'ecfor supplying work pieces tosaid platen,

controlling mechanism for determining the positioning of said feeder,and a master sheet and tracker-board cooperating with said carriage tocontrol the action of said feeder in supplying work pieces to saidplaten.

59. The combination in a typewriter car riage having a platen thereon,of a feeder for supplying work sheets to said platen, means for removingwork sheets from said platen, connections for supplying worksheets tosaid platen by said feeder, and connections for actuating saidwork-sheetremoving means from said platen.

60. The combination with a typewriting mechanism, of a pneumatic feederfor supplying work-sheets to said typewriting mechanism, a tracker,connections between said tracker and said feeder, and a master sheet forcontrolling the action of said feeder, said master sheet having aperforation therein admitting of the passage of air through said trackerto control, through the intermediary of said connections, the action ofthe air in said pneumatic feeder.

61. In combination, a sheet holding table, a sheet picking up membermovable toward and away from said table, means for creating a suctionthrough said member to hold a sheet thereto, a valve reciprocallymovable to open and close said suction means, and a pneumatic having amovable-part to engage with said valve said pneumatic beingautomatically operable at predetermined intervals to open communicationbetween said member and the suction means.

LYMAN R. ROBERTS. GHARLESL. DAVIS.

Witnesses:

B. C. STICKNEY, JOHN O. SEIFERT.

